Plaster lath



July l 1924. 1,499,465

Y J. F. MAKOWSKI PLASTERV LATH l Filed. March 2l, 1923 MGM m TTORNEY Patented `fully ll, M24.

JOHN F. MAK'OWSKI, OF STOQKTON, CALIFORNIA, ASSIGINOR TO* CALIFORNIA (3E-DAB, PRODUCTS COMPANY, OE STOCK'ION, CALIFORNIA, A CORPORATION.

PLASTEB LATI'I.

Application led March 21, 1923. Seria1`No..626,562.

To all whom t may concern.

Be it known that I, Jox-1N F. MAKowsxr, a citizen of the United States of America, residing at Stockton, county of San Joaquin, State of California, have invented certain new and useful Improvements in Plaster Lath; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in building materials, and particularly to a form of plaster lath especially intended as a modification of that type of lath shown in my co-pending application filed December 23rd, 1922, Serial No. 608,595, the principal object of the present invention being to provide a plaster lath, to which plaster may be very easily applied, which, is especially suited for use as the exterior covering on frame buildings on which a stucco finish is desired, and which, in addition to being` water-proof, will brace the studding to which it is applied, thereby making the structure more substantial.

The lath may also be much more easily and quickly applied to the frames, than the ordinary -wooden lath commonly used, will brace said frames more than the steel or other metal lath also used, and obviates the need of a layer of the waterproof building paper usually applied. i

A further object of the invent-ion is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purposes for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

The figure on the drawing is a back view of a section of my improved lath.

Referring to the numerals of reference on the drawing, l denotes a sheet of strong straw or card board of suitable dimensions,

backed by continuous and vertically spaced strips of ordinary wooden lath 2, secured to the board by gluing or other suitable means, these lath or course being placed against the studding of the building when the sheets are applied and nailed thereto from the outer side of the board.

The latter is coated on the outside with an adhesive and waterproofing material 3, such as asphaltum or the like, which prevents any moisture in the plaster later ap-` plied, or in the atmosphere, from penetrating to the strawboard andto the interior of the building.

rlhe coating 3 is flowed onto the board prior to its being applied onto a building and while it is lying in a horizontal position, and before it sets, a layer of very coarse gravel, small stones or other mineral fragments t, is strewn over the entire surface of the board to as even a thickness as possible.

These fragments 4- are embedded in the material 3 somewhat, so as to be firmly held thereby, and are preferably irregular in shape, and project from the coating 3 so that substantially dove-tail shaped crevices will beformed between the individualL fragments, or between enough of them to form a good lock for the exterior coating of plaster when the latter is applied, insuring that it will not tend to cleave from the material 4, as experiments have showed that the board 1 will give before the plaster does.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1. A plaster lath comprising a plurality of spaced strips, a sheet of material on which the strips are mounted, and plaster holding means on the outer surface of said sheet.

2. A plaster lath comprising a plurality of spaced strips, a sheet of material on which the strips are mounted, plaster holding means on the outside of said sheet, and a water-proofing means between said holding means and the sheet.

3. A plaster lath comprising a plurality of spaced strips, a sheet of material on Whiehrthe strips are mounted, plaster holding means. on the outside of sai-d sheet, and a common means for Waterprooling said sheet and vfor securing the plaster holding means thereto. l

4. A plaster lath Comprising a plurality of spaced Wooden strips, a solid sheet of strawboard on which said strips are 1nounted, and plaster holding meansinounted on the outer surface of the sheet.`

Y 5. A.' plaster lath comprising a plurality of spaced Wooden strips, a solid sheet of strawboard on which said strips are mount- JOHN F. MAKOWSKI. 

